Expo de Ingles

UNIVERSIDAD TECNOLÓGICA DE SAN JUAN DEL RÍO





CELIA CHAVEZ HERNANDEZ
ADRIANA ELIZABETH HERNANDEZ TREJO
ANTONIO RECENDIZ MENTADO
MÁRQUEZ RENERO MIGUEL ALEJANDRO

TECNOLOGÍAS DE LA INFORMACIÓN Y COMUNICACIÓN
TIC04SM08



At the beginning of the 11th century, the Albert Itimiano, Archer invention float, "the carroccio" was a military vehicle sanctity and oversized. Dragged by 24 horses, two axes and four wheels, had a House of two sizes heights. It was fully Spanish battleship, had a central tower used precede an image of Christ, or a cross of two or more meters and had an altar. The normal allocation not down 50 persons, responsible for defence, archers 12 or more trumpets that not caravan of sonar in the combat, drivers, etc.

From the 12th century, cart again to return to their character of luxury, became a sign of economic power and social position, particularly poníéndose fashion between the princesses, making cover their Velvet floats and reasons for gold and silver.
The suspended car did not appear until the 15th century and was invented by Hungarian Kotzen. The floats with glass Windows first appeared in Italy in the 17TH century. Paris, around the middle of the 18th century had a close to the 15,000 floats Park.

CHECK THE YEAR
Since its origin at the end of the 19th century, cars have changed and evolved in response to the wishes of consumers, economic conditions and new technologies. The first vehicles were like the carriages of the time with the situated in the low engine because this was the style to which people were accustomed. To 1910, already was the engine in front, which gave the car a personality. As it was increasing demand, became more stylized. During the 1920s and 1930s appeared cars luxury designed on behalf of the client that is called classic cars. The crisis of oil from the decades 1970s and 1980s were reflected in the construction of low consumption patterns. Manufacture in today's series is reduce costs which is demanded consumption.

The first car without horses American with internal combustion engine was introduced by the brothers Charles and Frank Duryea in 1893. He followed the first experimental Henry Ford car that same year.





Cars from the 1920s were innovations as inflatable tires, wheels or wheels pressed steel and brakes in four tyres. Although series (devised by Henry Ford in 1908) production continued to lower the price of cars, at this time many models were commissioned and measure.

Comfortable, reliable and relatively cheap cars were designed for the famlia. In the 1930s cars were more aerodynamic its predecessors. In the 1940s appeared automatic change, compact headlamps and tubeless tyres.

The rear fins were fashion. Although not contributed to the performance of the vehicle, its appearance liked much buyers and to 1960s demanded more large fins.





VW Beetle or "vocho" was built for years without any changes. The Volkswagen name means car for the people and met two important needs of the consumer. Installed at the rear engine and how small and round beetle were an attractive combination of personality and savings maintained his popularity for decades.




Modern cars tend to be lightweight, aerodynamic and compact. Car importing Japanese and European has greatly affected the car industry.

At the end of the 20th century, cars faced two major challenges: on the one hand, to increase the safety of occupants to reduce the number of victims of road accidents, since in industrialized countries are among the leading causes of mortality in not elderly population; on the other hand, to increase their efficiency to reduce resource consumption and pollution, which are one of the main causes. In the first paragraph, of improving the protection afforded by the bodywork, been developed mechanisms of security, such as the system anti-lock brakes (ABS) or (airbag) air bags. With regard to the second aspect, oil shortages and rising fuel prices in the 1970s encouraged eventually mechanical engineers to develop new technologies to reduce consumption of conventional engines (for example, controlling the mixture aire-combustible microprocessor or reducing the weight of vehicles) and accelerate the work on alternative engines. Attempt to reduce the dependence on oil to use renewable fuels: some countries used vegetable oil and the use of hydrogen, which would be obtained from the air using, for example, solar energy has also been raised. Hydrogen is a very clean fuel, since its combustion produces only water.